| # |
| # |
| |
| # Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Google Inc. |
| # All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are |
| # met: |
| # |
| # 1. Redistributions of source code must retain the above copyright notice, |
| # this list of conditions and the following disclaimer. |
| # |
| # 2. Redistributions in binary form must reproduce the above copyright |
| # notice, this list of conditions and the following disclaimer in the |
| # documentation and/or other materials provided with the distribution. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
| # IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR |
| # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| # EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| # PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| # PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| # LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| # NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| |
| """Logical units for querying instances.""" |
| |
| import itertools |
| |
| from ganeti import compat |
| from ganeti import constants |
| from ganeti import locking |
| from ganeti import utils |
| from ganeti.cmdlib.base import NoHooksLU |
| from ganeti.cmdlib.common import ShareAll, GetWantedInstances, \ |
| CheckInstancesNodeGroups, AnnotateDiskParams |
| from ganeti.cmdlib.instance_utils import NICListToTuple |
| from ganeti.hypervisor import hv_base |
| |
| |
| class LUInstanceQueryData(NoHooksLU): |
| """Query runtime instance data. |
| |
| """ |
| REQ_BGL = False |
| |
| def ExpandNames(self): |
| self.needed_locks = {} |
| |
| # Use locking if requested or when non-static information is wanted |
| if not (self.op.static or self.op.use_locking): |
| self.LogWarning("Non-static data requested, locks need to be acquired") |
| self.op.use_locking = True |
| |
| if self.op.instances or not self.op.use_locking: |
| # Expand instance names right here |
| (_, self.wanted_names) = GetWantedInstances(self, self.op.instances) |
| else: |
| # Will use acquired locks |
| self.wanted_names = None |
| |
| if self.op.use_locking: |
| self.share_locks = ShareAll() |
| |
| if self.wanted_names is None: |
| self.needed_locks[locking.LEVEL_INSTANCE] = locking.ALL_SET |
| else: |
| self.needed_locks[locking.LEVEL_INSTANCE] = self.wanted_names |
| |
| self.needed_locks[locking.LEVEL_NODEGROUP] = [] |
| self.needed_locks[locking.LEVEL_NODE] = [] |
| self.needed_locks[locking.LEVEL_NETWORK] = [] |
| self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE |
| self.dont_collate_locks[locking.LEVEL_NODEGROUP] = True |
| self.dont_collate_locks[locking.LEVEL_NODE] = True |
| self.dont_collate_locks[locking.LEVEL_NETWORK] = True |
| |
| def DeclareLocks(self, level): |
| if self.op.use_locking: |
| owned_instances = dict(self.cfg.GetMultiInstanceInfoByName( |
| self.owned_locks(locking.LEVEL_INSTANCE))) |
| if level == locking.LEVEL_NODEGROUP: |
| |
| # Lock all groups used by instances optimistically; this requires going |
| # via the node before it's locked, requiring verification later on |
| self.needed_locks[locking.LEVEL_NODEGROUP] = \ |
| frozenset(group_uuid |
| for instance_uuid in owned_instances.keys() |
| for group_uuid in |
| self.cfg.GetInstanceNodeGroups(instance_uuid)) |
| |
| elif level == locking.LEVEL_NODE: |
| self._LockInstancesNodes() |
| |
| elif level == locking.LEVEL_NETWORK: |
| self.needed_locks[locking.LEVEL_NETWORK] = \ |
| frozenset(net_uuid |
| for instance_uuid in owned_instances.keys() |
| for net_uuid in |
| self.cfg.GetInstanceNetworks(instance_uuid)) |
| |
| def CheckPrereq(self): |
| """Check prerequisites. |
| |
| This only checks the optional instance list against the existing names. |
| |
| """ |
| owned_instances = frozenset(self.owned_locks(locking.LEVEL_INSTANCE)) |
| owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP)) |
| owned_node_uuids = frozenset(self.owned_locks(locking.LEVEL_NODE)) |
| owned_networks = frozenset(self.owned_locks(locking.LEVEL_NETWORK)) |
| |
| if self.wanted_names is None: |
| assert self.op.use_locking, "Locking was not used" |
| self.wanted_names = owned_instances |
| |
| instances = dict(self.cfg.GetMultiInstanceInfoByName(self.wanted_names)) |
| |
| if self.op.use_locking: |
| CheckInstancesNodeGroups(self.cfg, instances, owned_groups, |
| owned_node_uuids, None) |
| else: |
| assert not (owned_instances or owned_groups or |
| owned_node_uuids or owned_networks) |
| |
| self.wanted_instances = instances.values() |
| |
| def _ComputeBlockdevStatus(self, node_uuid, instance, dev): |
| """Returns the status of a block device |
| |
| """ |
| if self.op.static or not node_uuid: |
| return None |
| |
| result = self.rpc.call_blockdev_find(node_uuid, (dev, instance)) |
| if result.offline: |
| return None |
| |
| result.Raise("Can't compute disk status for %s" % instance.name) |
| |
| status = result.payload |
| if status is None: |
| return None |
| |
| return (status.dev_path, status.major, status.minor, |
| status.sync_percent, status.estimated_time, |
| status.is_degraded, status.ldisk_status) |
| |
| def _ComputeDiskStatus(self, instance, node_uuid2name_fn, dev): |
| """Compute block device status. |
| |
| """ |
| (anno_dev,) = AnnotateDiskParams(instance, [dev], self.cfg) |
| |
| return self._ComputeDiskStatusInner(instance, None, node_uuid2name_fn, |
| anno_dev) |
| |
| def _ComputeDiskStatusInner(self, instance, snode_uuid, node_uuid2name_fn, |
| dev): |
| """Compute block device status. |
| |
| @attention: The device has to be annotated already. |
| |
| """ |
| drbd_info = None |
| output_logical_id = dev.logical_id |
| if dev.dev_type in constants.DTS_DRBD: |
| # we change the snode then (otherwise we use the one passed in) |
| if dev.logical_id[0] == instance.primary_node: |
| snode_uuid = dev.logical_id[1] |
| snode_minor = dev.logical_id[4] |
| pnode_minor = dev.logical_id[3] |
| else: |
| snode_uuid = dev.logical_id[0] |
| snode_minor = dev.logical_id[3] |
| pnode_minor = dev.logical_id[4] |
| drbd_info = { |
| "primary_node": node_uuid2name_fn(instance.primary_node), |
| "primary_minor": pnode_minor, |
| "secondary_node": node_uuid2name_fn(snode_uuid), |
| "secondary_minor": snode_minor, |
| "port": dev.logical_id[2], |
| } |
| # replace the secret present at the end of the ids with None |
| output_logical_id = dev.logical_id[:-1] + (None,) |
| |
| dev_pstatus = self._ComputeBlockdevStatus(instance.primary_node, |
| instance, dev) |
| dev_sstatus = self._ComputeBlockdevStatus(snode_uuid, instance, dev) |
| |
| if dev.children: |
| dev_children = map(compat.partial(self._ComputeDiskStatusInner, |
| instance, snode_uuid, |
| node_uuid2name_fn), |
| dev.children) |
| else: |
| dev_children = [] |
| |
| return { |
| "iv_name": dev.iv_name, |
| "dev_type": dev.dev_type, |
| "logical_id": output_logical_id, |
| "drbd_info": drbd_info, |
| "pstatus": dev_pstatus, |
| "sstatus": dev_sstatus, |
| "children": dev_children, |
| "mode": dev.mode, |
| "size": dev.size, |
| "spindles": dev.spindles, |
| "name": dev.name, |
| "uuid": dev.uuid, |
| } |
| |
| def Exec(self, feedback_fn): |
| """Gather and return data""" |
| result = {} |
| |
| cluster = self.cfg.GetClusterInfo() |
| |
| node_uuids = itertools.chain(*(self.cfg.GetInstanceNodes(i.uuid) |
| for i in self.wanted_instances)) |
| nodes = dict(self.cfg.GetMultiNodeInfo(node_uuids)) |
| |
| groups = dict(self.cfg.GetMultiNodeGroupInfo(node.group |
| for node in nodes.values())) |
| |
| for instance in self.wanted_instances: |
| pnode = nodes[instance.primary_node] |
| hvparams = cluster.FillHV(instance, skip_globals=True) |
| |
| if self.op.static or pnode.offline: |
| remote_state = None |
| if pnode.offline: |
| self.LogWarning("Primary node %s is marked offline, returning static" |
| " information only for instance %s" % |
| (pnode.name, instance.name)) |
| else: |
| remote_info = self.rpc.call_instance_info( |
| instance.primary_node, instance.name, instance.hypervisor, |
| cluster.hvparams[instance.hypervisor]) |
| remote_info.Raise("Error checking node %s" % pnode.name) |
| remote_info = remote_info.payload |
| |
| allow_userdown = \ |
| cluster.enabled_user_shutdown and \ |
| (instance.hypervisor != constants.HT_KVM or |
| hvparams[constants.HV_KVM_USER_SHUTDOWN]) |
| |
| if remote_info and "state" in remote_info: |
| if hv_base.HvInstanceState.IsShutdown(remote_info["state"]): |
| if allow_userdown: |
| remote_state = "user down" |
| else: |
| remote_state = "down" |
| else: |
| remote_state = "up" |
| else: |
| if instance.admin_state == constants.ADMINST_UP: |
| remote_state = "down" |
| elif instance.admin_state == constants.ADMINST_DOWN: |
| if instance.admin_state_source == constants.USER_SOURCE: |
| remote_state = "user down" |
| else: |
| remote_state = "down" |
| else: |
| remote_state = "offline" |
| |
| group2name_fn = lambda uuid: groups[uuid].name |
| node_uuid2name_fn = lambda uuid: nodes[uuid].name |
| |
| disk_objects = self.cfg.GetInstanceDisks(instance.uuid) |
| output_disks = map(compat.partial(self._ComputeDiskStatus, instance, |
| node_uuid2name_fn), |
| disk_objects) |
| |
| secondary_nodes = self.cfg.GetInstanceSecondaryNodes(instance.uuid) |
| snodes_group_uuids = [nodes[snode_uuid].group |
| for snode_uuid in secondary_nodes] |
| |
| result[instance.name] = { |
| "name": instance.name, |
| "config_state": instance.admin_state, |
| "run_state": remote_state, |
| "pnode": pnode.name, |
| "pnode_group_uuid": pnode.group, |
| "pnode_group_name": group2name_fn(pnode.group), |
| "snodes": map(node_uuid2name_fn, secondary_nodes), |
| "snodes_group_uuids": snodes_group_uuids, |
| "snodes_group_names": map(group2name_fn, snodes_group_uuids), |
| "os": instance.os, |
| # this happens to be the same format used for hooks |
| "nics": NICListToTuple(self, instance.nics), |
| "disk_template": utils.GetDiskTemplate(disk_objects), |
| "disks": output_disks, |
| "hypervisor": instance.hypervisor, |
| "network_port": instance.network_port, |
| "hv_instance": instance.hvparams, |
| "hv_actual": hvparams, |
| "be_instance": instance.beparams, |
| "be_actual": cluster.FillBE(instance), |
| "os_instance": instance.osparams, |
| "os_actual": cluster.SimpleFillOS(instance.os, instance.osparams), |
| "serial_no": instance.serial_no, |
| "mtime": instance.mtime, |
| "ctime": instance.ctime, |
| "uuid": instance.uuid, |
| } |
| |
| return result |
